38038578509 has 8 divisors (see below), whose sum is σ = 39372303000. Its totient is φ = 36706324032.

The previous prime is 38038578469. The next prime is 38038578511. The reversal of 38038578509 is 90587583083.

38038578509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14333357284 + 23705221225 = 119722^2 + 153965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38038578509 - 2¹⁶ = 38038512973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38038578709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314714 + ... + 418475.

It is an arithmetic number, because the mean of its divisors is an integer number (4921537875).

Almost surely, 2^38038578509 is an apocalyptic number.

It is an amenable number.

38038578509 is a deficient number, since it is larger than the sum of its proper divisors (1333724491).

38038578509 is a wasteful number, since it uses less digits than its factorization.

38038578509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735007.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 38038578509 in words is "thirty-eight billion, thirty-eight million, five hundred seventy-eight thousand, five hundred nine".